Hat-pin.



Nd. 781,419. PATENTED JAN. 31, 1905.

. w.. GRIFFITH.

HAT PIN.

APPLIUATION FILED AUG. 3, 1904.

' ciple of a screw.

UNITED STATES Patented January 31, 1905.

- PATENT ()FF CE,

HAT-PIN.

SPECIFICATION forming part of Letters Patent No. 781,419, dated January 31, 1905. Application filed August 3, 1904.. seizure. 219,312.

To utZZ whom/it may concern:

Be it known that I, ALBERT W. GRIFFITH, a citizen of the United States of America, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have inve'nted certain new and useful Impi'ovements in Hat-Pins, of which the following is a specification, reference being had therein to the ac-.

companying drawings.

This invention has relation to certain new and useful improvements in hat-pins, and has for its object the provision of novel means'in connection with a pin whereby when the same has been once placed in a hat it will be retained therein until removed.

Another object of this invention is to provide a hat-pin of an extremely simple construction, one which will be strongand durable and highly eflicient when used.

Briefly described, my improved hat-pin consists of a shank portion havinga pointed end and a head secured upon its other end, this head being ornamented as may be desired. Near the head of the pinImake the shank portion of a spiral form, said spiral being composed of aplurality of convolutions of a volute form and tapering inwardly from the center toward both ends, whereby when the pin has been secured within a hat and rotated the same will become fastened therein and will not become loose from thehat or drop therefrom.

The above construction will be hereinafter more fully described and specifically pointed out in the claims, and referring to the drawings accompanying this application like numerals of reference indicate similar parts throughout the several views, in which Figure 1 is a perspective View of my improved hat-pin. Fig. 2 is afragmentary side elevation view of the spiral portion of the pin,

and Fig. 3 is an end view of the same.

- To put my invention into practice, Ihave constructed a portion of the pin upon the prin- It is awell-known fact that hat-pins commonly used often become lost and drop from the hat of the wearer and often inconvenience the person wearing the hat by the trouble of retaining the same upon their head.

I have constructed my improved hat pin whereby when the same has-been once placed in the hat it will be impossible for the same to become lost or loose from the hat until it is removed by the wearer of the hat.

My improved hat-pin consists of a shank portion 1, the one end of which is pointed, as indicated at 2, while upon the other end is placed a head 3, which may be artistically ornamented in any desired manner. My invention resides in providing a spiral 4 near the head of the pin, this spiral being composed'of a plurality of convolutions of a volute form and tapering inwardly from the center toward both ends. The spiral 4 is larger at the middle than at either endthat is, the convolutions 77 of the spiral are of a less diameter than the convolution 8, as clearlyillustrated in Fig. 2 of the drawings. By forming the convolutions 7 7 of a smaller diameter than the convolution 8 the spiral may be easily and quickly engaged in a hat, the'double-tapercd volute form causing the pin when rotated to travel within the hat, and the first rotation of the pin 1 in the ordinary manner and use any desired ornamentation in connection with the head to enhance the general appearance of the pin.

Having fully described my invention, What I claim, and desire to secure by Letters Pat ent, iS

1. The combination witha pin havinga head upon its one end, of a spiral formed integral with said pin, said spiral being composed of a plurality of convolutions of a volute form and tapering inwardly from the center to ward both ends, substantially as described.

2. The combination with a pin having a head upon its one end, ofa spiral formed integral with said pin near its 'head, said spiral comin testimony whereof I afiix my signature prislng a plurality of eonvolutions; the con- 1n the presence of two Witnesses. volutions at the center of the spiral being y 7' I larger than the convolutions at each end of the AL Blah Uhl h L 5 same, the one shank portion of said pin lying Witnesses:

in longitudinal alinernent with the other, sub- H. C. EVERT,

stantially as described. K. H. BUTLER. 

